This is a 1992 reprinting of the 1925 edition of Practical Balance and Hair-Spring Work. From the Preface, The watch repairer seeking improvement in any feature of balance and hair-spring work may find just the information that will enable him to master the particular point that causes more or less difficulty in getting a balance true and in poise or in fitting a new hair spring, reforming an overcoil or truing a spring that has been damaged.
Demonstrations used in the text have been accumulated through years of personal instruction of those in training for both speed and quality of work, and the various operations are covered with strict attention to this detail.
Note that the Table of Contents is quite descriptive. It is produced above in the slide show. Just click on any image to make it full-size and readable.
